Paper separation mechanism of stapleless binder

Patent metadata

Field	Value
Publication number	US-2023085336-A1
Application number	US-202017791732-A
Country	US
Kind code	A1
Filing date	Dec 21, 2020
Priority date	Jan 16, 2020
Publication date	Mar 16, 2023
Grant date	—

Abstract

A post-processing apparatus includes a paper alignment tray including a loading table on which a paper is to be loaded, and a side guide and an end guide to align a side in a width direction and an end in a longitudinal direction of the paper stack, respectively, a first binder including a binding unit to bind the paper stack on the paper alignment tray in a stapleless manner, the first binder displaceable to a binding location to bind the paper stack and to a separation location to separate the binding unit from the paper stack, and a controller to move the paper stack relative to the binding unit while displacing the first binder from the binding location to the separation location.

First claim

What is claimed is:

1 . A post-processing apparatus comprising:
a paper alignment tray including a loading table on which a paper stack is to be loaded, and a side guide and an end guide to align a side in a width direction and an end in a longitudinal direction of the paper stack, respectively, when the paper stack is loaded on the loading table; a first binder including a binding unit to bind the paper stack on the paper alignment tray in a stapleless manner, the first binder displaceable to a binding location to bind the paper stack and to a separation location to separate the binding unit from the paper stack; and a controller to move the paper stack relative to the binding unit while displacing the first binder from the binding location to the separation location.

2 . The post-processing apparatus of claim 1 , wherein the side guide including a first side guide close to the first binder and a second side guide distant from the first binder, and
wherein the controller to move the second side guide outwards in the width direction before displacing the first binder to the separation location and to move the first side guide inwards in the width direction while displacing the first binder from the binding location to the separation location.

3 . The post-processing apparatus of claim 1 , wherein the side guide including a first side guide close to the first binder and a second side guide distant from the first binder, and
wherein the controller to move the first side guide inwards in the width direction and to move the second side guide outwards in the width direction while displacing the first binder from the binding location to the separation location.

4 . The post-processing apparatus of claim 1 , wherein the controller to slide the first binder from the binding location to the outside of the paper stack in the width direction to be displaced to the separation location, and
wherein the controller to move the side guide such that the paper stack is moved in a direction opposite to a sliding direction of the first binder.

5 . The post-processing apparatus of claim 1 , wherein the controller to rotate the first binder to be displaced from the binding location to the separation location.

6 . The post-processing apparatus of claim 5 , wherein the controller to rotate the first binder around a hinge on the outside of the paper stack to be displaced to the separation location.

7 . The post-processing apparatus of claim 6 , wherein the binding unit is outside the paper stack at the separation location.

8 . The post-processing apparatus of claim 5 , wherein the controller to rotate the first binder around the hinge inside the paper stack to be displaced to the separation location.

9 . The post-processing apparatus of claim 5 , further comprising:
a second binder to be movable in the width direction and to drive a staple into the paper stack; and an elastic member to apply an elastic force to the first binder in a direction at the binding location, wherein the controller to move the second binder in the width direction to push the first binder in a direction opposite to the elastic force of the elastic member to rotate the first binder from the binding location to the separation location.

10 . A post-processing apparatus comprising:
a paper alignment tray including a loading table on which a paper stack is to be loaded, and a side guide and an end guide to align a side in a width direction and an end in a longitudinal direction of the paper stack, respectively; a first binder including a binding unit to bind the paper stack on the paper alignment tray in a stapleless manner, the first binder rotatable to a binding location to bind the paper stack and to a separation location to separate the binding unit from the paper stack; and an elastic member to apply an elastic force to the first binder in a direction at the binding location.

11 . The post-processing apparatus of cairn 10 , further comprising a second binder to drive a staple into the paper stack,
wherein the second binder is movable to an interference location in the width direction to rotate the first binder from the binding location to the separation location by pushing the first binder.

12 . The post-processing apparatus of claim 11 , wherein a hinge in a center of rotation of the first binder is outside the paper stack loaded on the loading table.

13 . The post-processing apparatus of claim 11 , wherein a hinge in a center of rotation of the first binder is inside the paper stack loaded on the loading table.

14 . The post-processing apparatus of claim 11 , further comprising a stopper to prevent the first binder from being rotated beyond the separation location.

15 . The post-processing apparatus of claim 14 , wherein the first binder is to be pushed by the second binder moved beyond the interference location to be slid to an evacuation location separated from the paper stack in the width direction.

Assignees

• Hewlett Packard Development Co

Inventors

• Fukasawa Eiji
• Kim Taehong
• Park Jeonghyeon

Classifications

• B31F5/02

  by crimping or slotting {or perforating} · CPC title

• H04N1/00639

  Binding, stapling, folding or perforating, e.g. punching · CPC title

• B65H2402/32

  Sliding support means · CPC title

• B65H2402/31

  Pivoting support means · CPC title

• B65H2601/273

  Adhering of handled material to another handled material or to part of the handling machine · CPC title